Utility-reported hardness
Unavailable
Ask your provider or test your tap
Local water dashboard
Official source aggregationRegional hardness evidence, possible serving systems, EPA compliance history, and the measurements that are—and are not—available for Coconino County.
Your tap water
Match the utility name to your water bill. These results describe the utility’s water, not a test at your home. A ZIP can include several water systems.
Utility hardness unavailable in this index
Nearby river or groundwater samples cannot tell us the hardness coming out of your tap. Ask your water provider for total hardness as CaCO₃, or test it at home.
Find an official utility report →At a glance
EPA quarter 2026Q2
Utility-reported hardness
Unavailable
Ask your provider or test your tap
All possible systems
No active flag
0 active health-based records
Measurements by utility
Each result belongs to a specific system.
Utility match
2 systems
Serves 125 people system-wide
Match the name on your water bill
These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
AZ0408046 · Groundwater · 125 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
EPA SDWIS Lead and Copper Rule samples
7% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
EPA SDWIS reported health-based violation
110% of the listed benchmark
Monitoring period: Oct 1, 2024 to Dec 31, 2024
| Rule | Status | Period |
|---|---|---|
| Revised Total Coliform RuleHealth-based | Resolved | Dec 1, 2025 to Dec 15, 2025 |
| Arsenic | Resolved | Apr 1, 2025 to Jun 30, 2025 |
| ArsenicHealth-based | Resolved | Oct 1, 2024 to Dec 31, 2024 |
| ArsenicHealth-based | Resolved | Jul 1, 2024 to Sep 30, 2024 |
| ArsenicHealth-based | Resolved | Apr 1, 2024 to Jun 30, 2024 |
| Revised Total Coliform Rule | Resolved | Mar 1, 2024 to Mar 31, 2024 |
| ArsenicHealth-based | Resolved | Jan 1, 2024 to Mar 31, 2024 |
| Public Notice | Resolved | Dec 13, 2023 to Jun 10, 2024 |
| Revised Total Coliform Rule | Resolved | Nov 1, 2023 to Nov 30, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Nov 19, 2024 |
| ArsenicHealth-based | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| ArsenicHealth-based | Resolved | Jul 1, 2023 to Sep 30, 2023 |
| ArsenicHealth-based | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| ArsenicHealth-based | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2022 to Jun 10, 2024 |
| ArsenicHealth-based | Resolved | Oct 1, 2022 to Dec 31, 2022 |
| Public Notice | Resolved | Aug 21, 2022 to Oct 27, 2022 |
| ArsenicHealth-based | Resolved | Jul 1, 2022 to Sep 30, 2022 |
| Arsenic | Resolved | Apr 1, 2022 to Jun 30, 2022 |
| ArsenicHealth-based | Resolved | Apr 1, 2022 to Jun 30, 2022 |
| ArsenicHealth-based | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| Lead and Copper Rule | Resolved | Jan 1, 2022 to Jan 13, 2022 |
| ArsenicHealth-based | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Arsenic | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Revised Total Coliform Rule | Resolved | Aug 1, 2021 to Sep 27, 2021 |
| ArsenicHealth-based | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2021 to Feb 25, 2021 |
AZ0403044 · Groundwater · 70 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
EPA SDWIS Lead and Copper Rule samples
0% of the listed benchmark
Monitoring period: Jan 1, 2024 to Dec 31, 2024
| Rule | Status | Period |
|---|---|---|
| Public Notice | Unaddressed | Feb 4, 2026 |
| Chlorine | Archived | Jan 1, 2026 to Jan 31, 2026 |
| Lead and Copper Rule | Unaddressed | Jan 1, 2026 |
| Public Notice | Unaddressed | Nov 19, 2025 |
| Public Notice | Unaddressed | Nov 19, 2025 |
| Public Notice | Unaddressed | Nov 19, 2025 |
| Consumer Confidence Rule | Resolved | Oct 2, 2025 to Oct 15, 2025 |
| Chlorine | Archived | Oct 1, 2025 to Oct 31, 2025 |
| Lead and Copper Rule | Unaddressed | Oct 1, 2025 |
| Consumer Confidence Rule | Resolved | Jul 1, 2025 to Oct 15, 2025 |
| Public Notice | Unaddressed | May 2, 2025 |
| Chlorine | Archived | Apr 1, 2025 to Apr 30, 2025 |
| TTHM | Archived | Jan 1, 2025 to Dec 31, 2025 |
| Total Haloacetic Acids (HAA5) | Archived | Jan 1, 2025 to Dec 31, 2025 |
| Public Notice | Unaddressed | Dec 20, 2024 |
| Chlorine | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Chlorine | Resolved | Nov 1, 2024 to Nov 30, 2024 |
| LEAD AND COPPER RULE REVISIONS | Resolved | Oct 17, 2024 to Nov 20, 2024 |
| LEAD AND COPPER RULE REVISIONSHealth-based | Resolved | Oct 17, 2024 to Nov 20, 2024 |
| Chlorine | Resolved | Oct 1, 2024 to Oct 31, 2024 |
| Chlorine | Resolved | Sep 1, 2024 to Sep 30, 2024 |
| Groundwater RuleHealth-based | Resolved | Aug 14, 2024 to Nov 15, 2024 |
| Chlorine | Resolved | Aug 1, 2024 to Aug 31, 2024 |
| Public Notice | Resolved | Jul 2, 2024 to Jun 27, 2024 |
| Chlorine | Resolved | Jul 1, 2024 to Jul 31, 2024 |
| Public Notice | Unaddressed | Apr 2, 2024 |
| Chlorine | Resolved | Apr 1, 2024 to Apr 30, 2024 |
| Chlorine | Resolved | Mar 1, 2024 to Mar 31, 2024 |
| Chlorine | Resolved | Feb 1, 2024 to Feb 29, 2024 |
| Public Notice | Resolved | Jan 2, 2024 to Jun 27, 2024 |
| Chlorine | Resolved | Jan 1, 2024 to Jan 31, 2024 |
| Chlorine | Resolved | Oct 1, 2023 to Dec 31, 2023 |
| Lead and Copper Rule | Resolved | Oct 1, 2023 to Jun 27, 2024 |
| Public Notice | Resolved | Aug 9, 2023 to Jun 27, 2024 |
| Lead and Copper Rule | Resolved | Jul 1, 2023 to Aug 17, 2023 |
| Chlorine | Resolved | Jul 1, 2023 to Sep 30, 2023 |
| Chlorine | Resolved | Apr 1, 2023 to Jun 30, 2023 |
| Chlorine | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Public Notice | Resolved | Dec 3, 2022 to Jun 27, 2024 |
| Consumer Confidence Rule | Resolved | Oct 2, 2022 to Nov 18, 2022 |
| Public Notice | Resolved | Aug 18, 2022 to Jun 27, 2024 |
| Public Notice | Resolved | Aug 17, 2022 to Jun 27, 2024 |
| Public Notice | Resolved | Jul 20, 2022 to Jun 27, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2022 to Dec 27, 2022 |
| Chlorine | Resolved | Jul 1, 2022 to Sep 30, 2022 |
| Lead and Copper Rule | Resolved | Jul 1, 2022 to Aug 9, 2023 |
| Revised Total Coliform Rule | Resolved | Apr 1, 2022 to Apr 30, 2022 |
| Chlorine | Resolved | Apr 1, 2022 to Jun 30, 2022 |
| Groundwater RuleHealth-based | Resolved | Jan 18, 2022 to Dec 5, 2022 |
| Lead and Copper Rule | Resolved | Jan 1, 2022 to Aug 9, 2023 |
| Chlorine | Resolved | Jan 1, 2022 to Mar 31, 2022 |
| Groundwater RuleHealth-based | Resolved | Dec 19, 2021 to Dec 5, 2022 |
| Groundwater RuleHealth-based | Resolved | Dec 19, 2021 to Nov 17, 2022 |
| Chlorine | Resolved | Oct 1, 2021 to Dec 31, 2021 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Jul 26, 2021 |
| Lead and Copper Rule | Resolved | Jul 1, 2021 to Aug 9, 2023 |
| Chlorine | Resolved | Jul 1, 2021 to Sep 30, 2021 |
| Public Notice | Resolved | Apr 28, 2021 to Jul 26, 2021 |
| Lead and Copper Rule | Resolved | Apr 3, 2021 to Jun 16, 2021 |
| Chlorine | Resolved | Apr 1, 2021 to Jun 30, 2021 |
| Public Notice | Resolved | Feb 22, 2021 to Jun 16, 2021 |
| Public Notice | Resolved | Jan 22, 2021 to Jul 30, 2021 |
| Chlorine | Resolved | Jan 1, 2021 to Mar 31, 2021 |
| Lead and Copper RuleHealth-based | Resolved | Jan 1, 2021 to Jun 29, 2023 |
Hardness meter
263
PPM as CaCO₃
Very Hard
PPM
263
GPG
15.4
Regional environmental evidence
USGS hardness classification scale
263 PPM
Parts per million
263
mg/L as CaCO₃ equivalent
Grains per gallon
15.4
1 GPG ≈ 17.1 PPM
How to use regional evidence
These samples describe nearby environmental water. They cannot establish whether your tap water is soft or hard. Use a utility result or a tap test for appliance settings and treatment sizing.
USGS sites used
1
Nearest site
15.5 mi
Observation range
Aug 17, 2017–Aug 17, 2017
Regional evidence confidence
Low
Median of the latest source-type-aligned hardness observation at each monitoring site within 25 miles. Nearest monitoring location: A-22-08 23AAB (Well).USGS source documentation ↗Evidence tier: Regional environmental evidence. This value is not used as proof of the serving utility's treated-water hardness.
Regional context
These comparisons use other indexed ZIP estimates, not utility tap samples. They help show local context without replacing a household test.
Fort Valley median
263 PPM
About the same1 indexed ZIP readings · Range 263–263 PPM
Arizona median
64 PPM
199 PPM higher213 indexed ZIP readings · Range 33–2680 PPM
Evidence-first next steps
This profile can help you ask the right question. It cannot select equipment for a property without a current result from the serving utility or the tap.
ZIP boundaries and utility service areas do not perfectly match. Verify the system on a water bill before relying on system-wide records.
Use the current Consumer Confidence Report for treated-water results and official notices.
Find an official utility report →Use a tap hardness test before sizing a softener. For health concerns, use a certified laboratory and the correct sampling protocol.
Convert your hardness test result →Frequently asked
EPA ECHO shows no active health-based violation for the associated systems in this reporting snapshot. This does not prove every contaminant is absent; federal records can lag and household plumbing can change tap conditions.
Utility-reported hardness is unavailable in this index. Regional samples do not establish tap-water hardness. Ask your provider or test your tap.
Confirm hardness at your tap and consider actual scale or spotting before choosing treatment. Regional environmental values cannot determine whether you need a softener. A softener addresses hardness, not every contaminant.